cvs commit: src/sys/dev/usb ehci.c

[Wes Peters]

On Monday 07 March 2005 06:47 pm, Ian Dowse wrote:
> iedowse     2005-03-08 02:47:18 UTC
>
>   FreeBSD src repository
>
>   Modified files:
>     sys/dev/usb          ehci.c
>   Log:
>   Fix the silly bug that prevented most EHCI interrupt transfers from
>   ever working correctly: the code was linking the QHs together but
>   then immediately overwriting the "next" pointers. Oops. Also
>   initialise qh_endphub, since the EHCI spec says that we should
>   always set the pipe multiplier field to something sensible.
>
>   This appears to make basic split transactions work, so enable split
>   transactions for control, bulk and interrupt pipes (split isochronous
>   transfers are not yet implemented). It should now be possible to
>   use USB1 devices even when they are connected through a USB2 hub.

Hurray!  Imagine being able to scan without unplugging the printer
(or the keyboard)!

-- 
         "Where am I, and what am I doing in this handbasket?"

Wes Peters                                              wes at softweyr.com